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Bits to Bytes (bit to B)

Convert bits to bytes: 1 bit = 0.125 B. Exact conversion factor, formula, 18-row table and worked examples, with JSON API and MCP access.

Formula

1 bit = 0.125 B

bytes = bits × 0.125 — reverse: bits = bytes × 8

The factor is derived from the SI definitions of both units (base unit: B) as listed in NIST SP 811; results on this page are shown to 6 significant figures, the API returns up to 12.

Worked examples

1.5 bit = 0.1875 B
700 bit = 87.5 B
2048 bit = 256 B

Bits to bytes conversion table

Bits (bit)	Bytes (B)
1	0.125
2	0.25
4	0.5
8	1
16	2
32	4
64	8
100	12.5
128	16
256	32
500	62.5
512	64
1000	125
1024	128
2048	256
4096	512
8192	1024
10000	1250

FAQ

How many bytes are in one bit?

1 bit = 0.125 B. The factor comes from the SI definitions of both units (NIST SP 811 / BIPM), so it is exact or correct to at least 10 significant figures.

What is the formula to convert bits to bytes?

Multiply the value in bits by 0.125: bytes = bits × 0.125. For example, 1.5 bit = 0.1875 B.

How do I convert bytes back to bits?

Multiply by the inverse factor 8 (bits = bytes × 8), or use the bytes-to-bits page.

Related conversions

Bytes to bits (reverse)
Data Storage Converter — all data storage units in one tool
Megabytes to Gigabytes
Gigabytes to Megabytes
Gigabytes to Terabytes
Terabytes to Gigabytes
Kilobytes to Megabytes
Megabytes to Kilobytes
Mebibytes to Megabytes
Megabytes to Mebibytes

Machine access

API: GET https://tttkmbb.com/api/v1/convert?value=1.5&from_unit=bit&to_unit=B
MCP: server https://tttkmbb.com/mcp, tool convert_units with {"value":1.5,"from_unit":"bit","to_unit":"B"}
Markdown: https://tttkmbb.com/conversion/bits-to-bytes.md · JSON: https://tttkmbb.com/conversion/bits-to-bytes.json (add ?value= for a result) · Units: /api/v1/units?quantity=data-storage
OpenAPI operationId: convert_units. Freshness: static. Authentication: none.